#!/bin/bash
#1 2 3 4 5 加减乘除等15

for i in + - \* /;do
	for j in + - \* /;do
		for m in + - \* /;do
			for n in + - \* /;do
				if [ $((1${i}2${j}3${m}4${n}5)) -eq 15 ];then
					echo "1${i}2${j}3${m}4${n}5=15"
				fi
			done
		done
	done
done
